Nothing against you personally, Alexandre, but I gotta say -- I dislike "best offer" sales. In the absence of an agreed protocol and a system for accepting bids in a transparent manner, I much prefer sales where the seller states a price. It's then up to prospective buyers to purchase or not. Who has time to be checking back all the time to see if their "best offer" is indeed the best? And what's the timeframe for a decision? Vexing.
Just my own opinion.